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Finding the Fourth Proportional to 8,339.45, 11,509.52 and 4,755.71

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Solution

The fourth proportional to 8,339.45, 11,509.52 and 4,755.71 is: 6,563.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.45 : 11,509.52 = 4,755.71 : x
  2. Step 2: Convert to fraction form
    8,339.45/11,509.52 = 4,755.71/x
  3. Step 3: Cross multiply
    8,339.45x = 11,509.52 × 4,755.71
  4. Step 4: Simplify right side
    8,339.45x = 54,735,944.35
  5. Step 5: Solve for x
    x = 54,735,944.35/8,339.45
  6. Step 6: Final answer
    x = 6,563.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.